发明名称 |
Graphics processing apparatus having instruction which operates separately on X and Y coordinates of pixel location registers |
摘要 |
The graphics processing apparatus of the present invention utilizes individual registers of a register file to store the X and Y coordinates of pixels. These X and Y coordinates though formed into a single data word are separable by, for example, having the most significant bits specifying the Y coordinate and the least significant bits specifying the Y coordinate. The graphics processing apparatus supports instructions which provide separate and independent data manipulation of these X and Y coordinates. These X Y coordinate manipulation instructions can provide for separate X Y arithmetic operations on two data words, separate X and Y compare operations, separate X and Y data move operations and a conversion between the X Y address form to the linear address form. This technique is highly useful for manipulation of X Y address coordinates in a visual display system employing bit mapped graphics.
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申请公布号 |
US5333261(A) |
申请公布日期 |
1994.07.26 |
申请号 |
US19930059006 |
申请日期 |
1993.05.07 |
申请人 |
TEXAS INSTRUMENTS, INCORPORATED |
发明人 |
GUTTAG, KARL M.;ASAL, MICHAEL D.;TEBBUTT, NEIL;NOVAK, MARK F. |
分类号 |
G06F9/345;G06F9/38;G06F15/78;G06T1/20;(IPC1-7):G06F15/20 |
主分类号 |
G06F9/345 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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